13_Thermalec

7/25/2019 13_Thermalec

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POOLHEATERS

THERMALEC

T H E R M A L E C


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T H E R M A L E C

Thermalec Products founded in 1966,were the first company in the UK to manufacture a range of

electric heaters specifically for the commercial and domestic swimming pool industry. In 1999,

Thermalec joined the Meddings Group of Companies to enhance and diversify the Groups

engineering activities, enabling Thermalec to widen its horizons as part of a larger group.

Having established itself in the UK as the market leader Thermalec poolheaters have now become

the No.1 choice for electric heaters in the Middle East, Thermalecs reputation for design,quality and

reliability has allowed the company to expand into Europe, with agents in Germany, France, mainland

Spain and the Balearics, sales into many emerging markets are now also taking place.

Environmentally,Thermalec heaters are well positioned, having no constantly moving parts, noise

levels are practically non-existent(heat pumps have fans and motors), and having no fumes or

emissions a clean environment around your pool is easy (oil and gas heaters produce emissions).

Inexpensive to buy, easy installation and low running costs with minimal maintenance, no

compulsory annual inspection as an added advantage makes Thermalec Pool heaters the sensible

option for heating your pool.

Mainly used for swimming pools, with models suitable for spas and fish ponds, no other heater has a

lifetime guarantee of thermal efficiency your running costs will not escalate due to the heater

getting older.

Economy through Efficiency Control by Design


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The Low Cost Reliable Heating System forSwimming Pools & Spas

Thermalec Heaters are quiet,unobtrusive, easy to install and operate. Efficient and

economical to run and when used in conjunction with a solar bubble cover,Thermalec takes full benefit of natures natural heat gain during the day, keeping

your pool at a constant temperature throughout the season (not reliant on the

weather).

Unique design ensures cooler water from filter pump does not strike the

elements direct (giving longer life)

Unique spiral flow allows efficient heat removal from the elements, minimising

the scale and sediment build up.

Air generated from the pump passes harmlessly around the sides of the baffles

and across the top of the heater.(heat pumps heat air and water)

The control thermostat is positioned to sense the incoming water temperature

and controls the pool to within 1c.

The safety thermostat senses the water temperature leaving the heater.

Temperature rise within the heater due to poor flow is rapidly sensed by both

thermostats, switching the heater off instantly,ensuring safety at all times.

Heating Elements always submerged

Air passes safely above elements

Safety Thermostat

Pool Control Thermostat


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RANGE OF ELECTRIC POOL HEATERS

SPECIFICATION

Heater body: Cast iron with heavy fusion bonded epoxy coating impervious to salt and

chemically treated pool water.

35psi design pressure operating at a normal working pressure of 30psi gives protection to the

whole installation.

The drain valve allows the heater to be emptied for winterisation. Removable uPVC stub flanges

mean no unions or heat sink are required. Flow direction is left to right, can be reversed on site

(simple instructions in installation manual).

Heating Elements: Copper, Incoloy or Titanium elements are individually mounted in a

removable top plate, allowing easy element renewal and inspection of the interior of the vessel.

Controls: Heavy duty contactors controlling the power supply to the elements are switched in

turn by a filter pump interlock relay, control thermostat and safety thermostat, set to operate

before the water temperature reaches 53C.

A 2a fuse protects the control circuit and a minimum of 6-indicator lamps monitor every stage of

operation for simple diagnostic servicing.

Model Variations: Due to the variations in power output of different models, the heaters have the

following additional controls:

12PHR standard model: As above plus additional On/Off switch controlling the main power to

the heating elements.

All other standard models: 24PHR 36PHR 72PHR 120PHR and POWER BOOST MODELS Circuit breakers are fitted replacing the On/Off switch to protect against short circuit, they also act

as a main switch. In the event of the safety thermostat operating due to excess temperature rise a

trip is triggered within the breaker, totally isolating the heater at its point of supply.The heater will

not work again until these devices are manually reset.

36PHR 72PHR 120PHR models: Includes a thermometer to indicate outlet temperature,

enables flow rates to be adjusted if fitted with a by-pass or used in multiples or operated in

parallel with an alternative means of heating.

72PHR models: A time delay relay, engages the contactors in two stages,reducing electrical

surges,a 2-step temperature controller overrides the time delay in the event of rapid temperature

rises, 2 safety valves to cope with increased power.

120PHR models:Two time delay relays,engage the contactors in three stages, 2-step

temperature controller and four safety valves.

In view of our policy of continuous improvement,we reserve the right to change this specification

without notice.

GUARANTEE TWO YEARS:

Against faulty workmanship or materials. Repair or replacement of faulty components returned to our factory for inspection.

This guarantee does not cover misuse or neglect of the heater.

E & 0 E

12PHR 3kW 12kW

24PHR 15kW 24kW

36PHR 30kW 36kW

72PHR 48kW 72kW

120PHR 84KW 120KW


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THERMALEC + ECONOMY 7 = LOW RUNNING COSTS ALL YEAR ROUND

Every Thermalec owner wakes up to find their pool water isjust as inviting as it was yesterday and the day before. Thatis the great advantage of having a positive and powerfulheating system keeping your pool at an even temperatureall summer long.

THE GREATEST ADVANCE IN POOL HEATING:THERMALEC + E7+ SOLAR COVER

COST OF RUNNING A POOL HEATING & FILTRATION

Taking a pool with a solar cover, maintained at 80F (27C)for the normal British 22 week season (early May to the endof September),our experience over 40 years shows that youcan expect an average heat loss equal to 28 units ofelectricity per sq.ft or 300 units per M2 of pool surface area.

This is the average heat loss from any pool of this size,heldat 80F (27C) regardless of the type of heating system used.

This now gives you a yardstick by which to compare runningcosts of different heating systems.

For example a 12 x 24 pool has a surface area of 288 sq.ft,multiply this by 28 and you have 8064 units. If the price youpay for E7 electricity in your area is 3.62p** per unit, the totalcost per season is 3.62p x 8064 units = 291.91 per year.

One of the many benefits of using a Thermalec on Economy7 is the dramatic reduction made on the cost of filtration.Inprivate pools it is possible to arrange for the filter pump torun during the E7 period only. A3/4 HP pump uses 1.1 units

per hour or 8 units in 7 hours, which at 3.62 pence** perunits costs 25p per night or 39.00 per season. The heatingand filtration costs amount to just 330.91 using the

Thermalec system.

LIFE-TIME EFFICIENCY GUARANTEE

Only Thermalec heaters are guaranteed to maintain theirefficiency over the years without regular cleaning, because itis the only system that does not rely upon the transfer ofheat from outside the water. Even if scale should form onthe heating elements,since they are totally surrounded bywater, the heat passes through the scale into the flowingwater with no loss of power. Compare this with a fired boiler

where less heat goes into the water than goes up the flue, asscale or dirt forms on the heating surfaces.

DEPRECIATION & MAINTENANCE

Any survey of running costs must include capitaldepreciation and maintenance.Thermalec heaters, at muchless than half the price of an equivalent Heat Pump or oil-fired boiler, having no continuously moving parts and nofuel ignition system, only requiring the filter pump tooperate for 7 hours in every 24, has to win hands down.

Simply select the size of heater you require from our sizingchart. Consult your Electricity Supply Company to make sure

that it is possible to operate from the existing supply,advising them that it will be operating during the night and(in most cases) the summer only. Ask them to offer you othersuitable tariffs with up to 10 hour charge periods whichwould allow the use of a smaller heater for a given pool size.

OUTDOOR POOL WARM-UP TIME

When good weather arrives it is natural to want your pool toreach a comfortable swimming temperature as quickly aspossible. Sizing the heater according to our charts andoperating entirely on Economy 7, the pool will take about 5nights (35 hours) to reach temperature.This comparesfavourably with a pool relying on a Heat Pump, which mustoperate 24 hours per day to match the heat produced by the

Thermalec in just 7 hours. The output from the Heat Pumpwill depend upon the average day and night airtemperatures and in early May will only give about 75% ofthe heat it will produce in mid-summer.

DELUXE MODEL providing economic heating for yourpool and simplistic control of your filter pump.

The Deluxe model has extra features to simplify your poolsystem, allowing the heaters to provide all the control andprotection required for the filter pump,packaged within theheater controls, eliminating the need for a specific controlpanel.Terminals are also provided for the connection of anunderwater light.

A Deluxe heater arrives on site; the filter pump is connectedto the clearly marked terminals within the heater. The pumpis protected by its own circuit breaker together with a motorstarter with overload protection as called for in the IEEWiring Regulations.

A quartz timeswitch maintains the correct time even in the

event of a power failure,ensuring that the heater only usespower during the low cost period.

The more powerful Deluxe heaters, from 15kw upwards,have a Power Boost facility to run during the day at areduced load. Pressing the Boost button warms the pool uptwice as quickly. It does this by operating on full load atnight and at a reduced load during the day for the first dayor two of the season. Once the pool reaches thetemperature you have selected, the heater automaticallyreverts to operation on Economy 7 for the rest of the season.

THE MOST ENVIRONMENTALLY FRIENDLY OF ALLPOSITIVE POOL HEATING SYSTEMS

Thermalec heaters have no fumes or smells, nofans or compressors andmost importantly of all,there are no emissions intothe atmosphere, CFCs orother refrigerants for you toworry about.

The clean solution to poolheating.

**All figures are approximate andvary depending on Electricity SupplyCompany


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I N S T A L L A T I O N D E T A I L S

12PHR 360 140 183 200 11/2

24PHR 630 210 175 260 236PHR 630 270 175 300 272PHR 630 430 175 380 2

120PHR 630 645 150 580 312PHR/DL* 630 140 183 260 11/2

The sizing chart is for outdoor pools in the South of England,running from the beginning of May until the end ofSeptember. For pools in the North, multiply the heater sizeby 1.3 - 1.5 depending upon the exposure of the pool.

The figures shown for capacity of pool in gallons or M3 are based upon an average depth of 46 (1.36m) and are

provided as a guide when the exact surface area is notknown.

For indoor pools, provided the air temperature is maintainedat least 1oC above the pool temperature by an alternative

form of heating 24 hours per day,the heater size may bereduced by multiplying by 0.7, but since running costs arerelated to the size of pool and the temperature required, notthe size of the heater, we advise keeping to the table wherepossible.

In countries where off-peak electricity is not available,

heaters sized at 1kW per 1000 gallons (4500 litres) with theheater operating 24 hours per day, will normally beadequate and will give an 8oF (4.4oC) rise in 24 hoursassuming no losses.

Model Type Casing Height (mm) Casing Depth (mm) Pipe Centre to Flow and ReturnFloor (mm) Wall (mm)

EXPORT SHIPPING SPECIFICATION12PHR 24PHR 36PHR 72PHR 20PHR

430 x 390 x 210mm 710 x 450 x 350mm 710 x 450 x 410mm 550 x 450 x 730mm 710 x 450 x 730mm28kg 46kg 62kg 95kg 142kg

TO CONVERTkW to B.Th.U.s multiply by 3412 | kW to kilocalories multiply by 860 | M2 to sq. ft. multiply by 10.764cu. ft. to gallons multiply by 6.23 | litres to gallons multiply by 0.22 | M3 to gallons multiply by 220

*All deluxe models as above unless otherwise stated.

Flow connections are plain uPVC stub flanges (plain bore) and require no unions for removal of heater, nor is a heat sink

required. Flow from left to right but can be reversed on site if required. Simply install in return pipe from filter to pool. The

heaters are designed to IP20 and must be installed in dry conditions under cover and in accordance with IEE Regulations at least

3.5m away from the pool.

All models are 390mm wide across casing

HEATER SIZING CHART FOR 7 HOUR HEATING PERIOD PER 24 HOURS WITH FLOATING SOLAR COVER

(IF FLOATING SOLAR BLANKET NOT USED INCREASE HEATER SIZE BY 50%)

IMPERIAL METRIC

MODEL 75oF 80oF 85oF HEATER 24oC 27oC 30oC

REF SQ.FT. GALLS. SQ.FT. GALLS. SQ.FT. GALLS. SIZE M2 M3 M2 M3 M2 M3

12PHR/3 63 1750 50 1400 42 1170 3kW 6 8 5 7 4 512PHR/6 125 3500 100 2800 83 2340 6kW 12 16 10 13 8 11

12PHR/7.5 156 4370 125 3500 104 2920 7.5kW 15 21 12 16 10 1312PHR/9 188 5250 150 4200 125 3500 9kW 18 25 14 20 12 16

12PHR/12 250 7000 200 5600 167 4670 12kW 24 33 19 26 15 21

24PHR/15 313 8750 250 7000 208 5840 15kW 30 41 24 33 19 2724PHR/18 375 10500 300 8400 250 7000 18kW 36 49 29 39 23 3224PHR/21 438 12250 350 9800 292 8170 21kW 42 58 34 46 27 3724PHR/24 500 14000 400 11200 334 9340 24kW 48 66 38 53 31 42

36PHR/30 625 17500 500 14000 417 11670 30kW 60 82 48 66 39 5336PHR/36 750 21000 600 16800 500 14000 36kW 72 99 58 79 46 64

72PHR/48 1000 28000 800 22400 667 18680 48kW 96 132 77 105 62 8572PHR/60 1250 35000 1000 28000 834 23350 60kW 120 165 96 132 77 10672PHR/72 1500 42000 1200 33600 1001 28020 72kW 144 197 115 158 93 127

120PHR/84 1750 49000 1400 39200 1167 32680 84kW 168 230 134 184 108 149120PHR/96 2000 56000 1600 44800 1334 37350 96kW 192 263 154 210 124 170

120PHR/108 2250 63000 1800 50400 1501 42020 108kW 216 296 173 237 139 191120PHR/120 2500 70000 2000 56000 1668 46690 120kW 240 329 192 263 155 212


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HEATER POWER CALCULATIONS FOR POOLS IN THE MIDDLE EAST

This sheet is intended to help select the correct size of heater to be fitted into a pool installation, based

upon the volume of the pool and its environment.

Design assumptions (based upon nearly 40 years experience):

1. Pool heater is running twenty-four hours per day.

2. In a twenty-four hour period an unheated swimming pool will experience a temperature drop of less than 8oF (4.4oC).

3. One kW of heater power for every 1000 gallons of volume will result in a temperature rise of 8oF (4.4oC). This is assuming

no thermal losses.

4. Theoretical heater power should be multiplied by the following factors to calculate the

actual size of Thermalec heater required.

Indoor pool temperature greater than air temperature = 1.25 Indoor pool temperature less than air temperature = 0.75 Outdoor pool without cover = 1.50 Outdoor pool in exposed environment = 1.30 Any pool less than 1 metre deep = 1.50

Conversions

Gallons to Litres: multiply by 4.55 Litres to gallons: multiply by 0.22

Metre3 to gallons: multiply by 220 Feet3 to gallons: multiply by 6.23

Worked Example

For an indoor pool of volume of 850m3 where the air temperature is less than the pool temperature, calculation is as follows:

Gallons = 850m3 x 220 = 187,000

Allowing 1kW per 1000 gallons the theoretical heater power would be 187kW Multiply by 1.25 to allow for temperature differential = 233.75 kW Nearest Thermalec heater is 120kW, two will be required (2 x120 kW = 240 kW )


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Thermalec Products

Kingsley Close East Way Lee Mill Industrial Estate Ivybridge Devon PL21 9GD EnglandTelephone +44 (0) 1752 313343 Fax +44 (0) 313353

E-mail [email protected] Web www.thermalec.co.uk

Thermalec Pool HeatersRecognised in the Middle East as the

Number One Electric Pool Heater

For further information contact your local agent:

T H E R M A L E C

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13_Thermalec

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